Monaco vs Juventus was billed as a clash of contrasting styles.
After all the deserved plaudits for Monaco's offensive play, Leonardo Jardim's men found themselves stuck on 146 goals in all competitions for the season as Buffon's goal proved as unbreachable for them as it had been for Barcelona in the quarter-finals. Juve are well and truly in command of this tie. With three chances, we didn't score.
The Juventus bench rose as one after Higuain slid in to turn home a deep cross in the 59th, with Alves again the provider.
Kylian Mbappe had more shots on target (2) in 16 minutes against Juventus than Luis Suarez and Neymar managed (1) in 180.
Juventus gave a masterclass in how to withstand pressure and then punish on the counter attack, with both of Higuain's goals coming after good Monaco spells.
Juventus coach Massimiliano Allegri sprung a major surprise with his team selection by ditching his solid back four, bringing in Andrea Barzagli into a three-man defence.
Monaco failed to score for the first time in 30 home games this season and only the fourth time in 58 games in all competitions.
Paulo Dybala (3) completed more than any other player. "It was beginning to look easy, but we made a few mistakes and Gigi (Buffon) produced a great save at 0-0".
He may be frequently criticised for his physique, but Gonzalo Higuain again showed why he is one of the top strikers in the world against Monaco. Mbappe also gave the ball away six times.
Higuain, who had not scored in his previous seven outings in the knockout rounds of the Champions League, broke the deadlock with a strike into the bottom corner from Alves' clever backheel.
After taking a step closer to the Champions League final on Wednesday, Juventus can secure an unprecedented sixth straight Serie A title this weekend if results go its way.
Argentine striker Higuain was set up by Dani Alves to open the scoring in the 29th minute, then converted an Alves cross just before the hour as Juve claimed a crucial victory in the semifinal first leg at Stade Louis II. - This is Higuaín's best ever goalscoring season in the Champions League (five goals).
"Andrea was enormous while Dani (Alves) and Gonzalo (Higuain) did brilliantly to create the goals".
"However it isn't over yet in the Champions League".
They have youth and the insouciance that comes with it.
Higuain, with his physicality and guile, put all his years of experience to good use by playing a patient game, refusing to rush forward and potentially waste the pass that led to his first goal.style="text-align: center;"